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Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment

文献类型：期刊论文

作者Cai, Xin1,2; Hu, Xiaoqiang2; Zheng, Leigang2; Li, Dianzhong2
刊名ACTA METALLURGICA SINICA-ENGLISH LETTERS
出版日期2021-06-15
页码5
ISSN号1006-7191
关键词Interstitial atom Cryogenic treatment Martensitic stainless steel Atom probe tomography
DOI10.1007/s40195-021-01265-7
通讯作者Hu, Xiaoqiang(xqhu@imr.ac.cn)
英文摘要The redistribution of C and N atoms during cryogenic treatment is crucial for the microstructure evolution and properties of high nitrogen martensitic steel. Here, the distinct redistribution behavior of C and N atoms in a martensitic stainless steel with 0.3 wt% C and 0.5 wt% N after cryogenic treatment were investigated by the atom probe tomography. Carbon clusters begin to form after cryogenic treatment at - 60 degrees C and gradually increase with the decrease of cryogenic treatment temperature. While Mo-N and Cr-N pairs are homogeneously distributed in the matrix even after cryogenic treatment at -120 degrees C, and then form enrichment phenomenon when the cryogenic temperature is deeply lowered to - 190 degrees C. It is found that the distinct redistributions of C and N atoms are associated with the different interaction energy between substitutional atoms and them. The stronger interaction between Cr, Mo atoms and N delays the segregation of N during the cryogenic treatment. Finally, the mechanical properties results confirmed that the deep lower cryogenic treatment is a promising method to improve the hardness and strength in the high nitrogen martensitic stainless steel.
资助项目National Natural Science Foundation of China[51871212] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04000000] ; Major Scientific and Technological Projects of Jiangxi Province[20194ABC28011] ; Major Scientific and Technological Projects of Jiangxi Province[TC190A4DA/35]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
出版者CHINESE ACAD SCIENCES, INST METAL RESEARCH
WOS记录号WOS:000661766000001
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major Scientific and Technological Projects of Jiangxi Province
源URL[http://ir.imr.ac.cn/handle/321006/160457]  
专题金属研究所_中国科学院金属研究所
通讯作者Hu, Xiaoqiang
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Cai, Xin,Hu, Xiaoqiang,Zheng, Leigang,et al. Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:5.
APA Cai, Xin,Hu, Xiaoqiang,Zheng, Leigang,&Li, Dianzhong.(2021).Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment.ACTA METALLURGICA SINICA-ENGLISH LETTERS,5.
MLA Cai, Xin,et al."Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):5.

入库方式： OAI收割

来源：金属研究所

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